Real Estate Securities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended			12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Minimum [Member]	Dec. 31, 2012 Minimum [Member]	Jun. 30, 2013 Maximum [Member]	Dec. 31, 2012 Maximum [Member]	Jun. 30, 2013 Weighted Average [Member]	Dec. 31, 2012 Weighted Average [Member]
Investment Holdings [Line Items]
Contractual maturities					8 years 2 months 12 days	8 years 4 months 24 days	33 years 7 months 6 days	33 years 8 months 12 days	26 years 4 months 24 days	26 years 1 month 6 days
Proceeds from the sale of real estate securities	$ 47,111,700	$ 3,257,082	$ 53,913,098	$ 28,759,376
Realized (loss)/gain on the sale of real estate securities	(206,876)	196,241	(206,876)	(1,736,517)
Realized loss on other-than-temporary impairments	$ (39,179)	$ (87,058)	$ (39,179)	$ (215,345)